<html>
	<head>
		<!--REF: http://css-tricks.com/what-if-there-was-no-position-static/-->
		<title>position:relative</title>
		<style>
			#box1{border:1px solid red;width:200px;height:50px;}
			#box2{border:1px solid green;width:200px;height:50px;position:relative;top:-20px;left:30px;float:left;}
			#box3{border:1px solid gray;width:200px;height:50px;}
		</style>
	</head>

	<body>
		<div id='box1'>some words</div>
		<div id='box2'>some words</div>
		<div id='box3'>some words</div>
		<div id='box4'>some words</div>
	</body>
</html>